Surgical access device with fixation mechanism and illumination mechanism

Abstract

A surgical access device including a cannula body, a fixation mechanism, and an illumination mechanism is disclosed. The fixation mechanism includes a collar, a sleeve, an expandable member, and a distal ring. The illumination mechanism includes at least one light disposed on the expandable member, and a switch. Distal translation of the collar relative to an elongated portion of the cannula body causes the expandable member to move from a first position defining a first gap between a mid-portion of the expandable member and the elongated portion of the cannula body, to a second position defining a second gap between the mid-portion of the expandable member and the elongated portion of the cannula body, the second gap being greater than the first gap.

What is claimed is: 
     
       1. A fixation mechanism for use with a surgical access device, the fixation mechanism comprising:
 a collar disposed about a longitudinal axis and configured to at least partially surround a portion of the surgical access device; 
 an expandable member disposed in mechanical cooperation with the collar; and 
 at least one light disposed on the expandable member and positioned distally of a longitudinal mid-point of the expandable member, 
 wherein distal translation of the collar relative to a distal end of the expandable member causes the expandable member to move from a first position defining a first gap between the longitudinal mid-point of the expandable member and the longitudinal axis, to a second position defining a second gap between the longitudinal mid-point of the expandable member and the longitudinal axis, the second gap greater than the first gap. 
 
     
     
       2. The fixation mechanism according to  claim 1 , wherein the at least one light includes at least four lights. 
     
     
       3. The fixation mechanism according to  claim 1 , wherein the expandable member defines a plurality of diamond-shaped openings. 
     
     
       4. The fixation mechanism according to  claim 3 , wherein the least one light includes at least two lights, and each light of the at least two lights is disposed distally of a widest portion of one diamond-shaped opening of the plurality of diamond-shaped openings. 
     
     
       5. The fixation mechanism according to  claim 1 , further including a biasing element and at least a portion of the biasing element is disposed proximally of the collar. 
     
     
       6. The fixation mechanism according to  claim 5 , wherein the biasing element is configured to bias the collar distally. 
     
     
       7. The fixation mechanism according to  claim 1 , further including a sleeve extending distally from the collar. 
     
     
       8. The fixation mechanism according to  claim 7 , wherein the sleeve is disposed in mechanical cooperation with the expandable member. 
     
     
       9. A fixation mechanism for use with a surgical access device, the fixation mechanism comprising:
 an expandable member configured to radially surround a portion of an elongated portion of the surgical access device, the elongated portion defining a longitudinal axis, the expandable member movable from a first position defining a first gap between a longitudinal mid-point of the expandable member and the elongated portion, to a second position defining a second gap between the longitudinal mid-point of the expandable member and the elongated portion, the second gap is greater than the first gap; and 
 a first light disposed on the expandable member, wherein the first light is movable from a first position where the first light faces a first direction to a second position where the first light faces a second direction and movement of the expandable member from the first position to the second position causes the first light to move from the first position to the second position. 
 
     
     
       10. The fixation mechanism according to  claim 9 , wherein the first position of the first light orients the first light perpendicular to the longitudinal axis. 
     
     
       11. The fixation mechanism according to  claim 10 , wherein the second position of the first light orients the first light parallel to the longitudinal axis. 
     
     
       12. The fixation mechanism according to  claim 9 , wherein the first light is disposed distally of the longitudinal mid-point of the expandable member. 
     
     
       13. The fixation mechanism according to  claim 9 , wherein the second position of the first light orients the first light distally. 
     
     
       14. The fixation mechanism according to  claim 9 , wherein the expandable member defines a plurality of diamond-shaped openings. 
     
     
       15. The fixation mechanism according to  claim 14 , further including a second light, wherein the first light and the second light are disposed distally of a widest portion of at least one diamond-shaped opening of the plurality of diamond-shaped openings. 
     
     
       16. The fixation mechanism according to  claim 9 , further including a collar disposed in mechanical cooperation with the expandable member and configured for longitudinal translation relative to the elongated portion of the surgical access device. 
     
     
       17. The fixation mechanism according to  claim 16 , further including a switch disposed on the collar and in electrical communication with the first light. 
     
     
       18. A fixation mechanism for use with a surgical access device, the fixation mechanism comprising:
 a collar at least partially surrounding a portion of an elongated portion of the surgical access device, the elongated portion defining a longitudinal axis, the collar being longitudinally translatable relative to the elongated portion; 
 a sleeve extending distally from the collar; 
 an expandable member extending distally from the sleeve and including a first light; 
 a distal ring engaged with a distal portion of the expandable member; and 
 a switch disposed on the collar and in electrical communication with the first light, 
 wherein distal translation of the collar relative to the distal ring causes the expandable member to move from a first position defining a first gap between a longitudinal mid-point of the expandable member and the longitudinal axis, to a second position defining a second gap between the longitudinal mid-point of the expandable member and the longitudinal axis, the second gap greater than the first gap. 
 
     
     
       19. The fixation mechanism according to  claim 18 , wherein the first light is disposed distally of the longitudinal mid-point of the expandable member. 
     
     
       20. The fixation mechanism according to  claim 18 , wherein the second position of the expandable member orients the first light distally.